Hyster-Yale Pallet Truck MPB040-EN24T1848

Warning: Follow the steps carefully to ensure the hydraulic system remains clean.

Flush the entire system to remove all paint, metal chips, welding shot, and debris.

Filter each change of oil to prevent the introduction of contaminants into the system.

Provide continuous protection from airborne contamination by keeping the breather clean and serviceable.

Sign off on the hydraulic oil cleaning

1. Remove the hydraulic unit from the lift truck. Refer to the Hydraulic Unit in this section.

2. Clean the reservoir and pump area to prevent contaminants from entering the hydraulic system.

3. Remove the capscrews retaining the reservoir to the hydraulic unit. Tap around the perimeter to break the seal and separate the reservoir from the motor assembly.

4. Remove the spring retaining screw from the suction tube.

5. Remove the suction tube and strainer by pulling down and out.

6. Remove the four capscrews retaining the pump to the drive motor.

7. Disassemble the pump assembly and coupling from the adapter.

WARNING: Batteries are heavy and can cause personal injury. Use care to avoid injury. DO NOT put hands, arms, feet, and/or legs between the battery and a solid object.

WARNING: Make sure the capacity of the crane and spreader bar is greater than the weight of the battery. The weight of the battery is normally shown on the battery case. The maximum battery weight is shown on the lift truck nameplate. The spreader bar must NOT be made of metal or it must have insulated straps.

WARNING: Put blocks under each side of the truck under the drive unit frame. Position blocks on both sides of the load wheels. The blocks must prevent the lift truck from falling and causing personal injury or property damage.

WARNING: The capacitor in the transistor controller can hold an electrical charge after the battery is disconnected. To prevent electrical shock and personal injury, discharge the capacitor before inspecting or repairing any component in the drive unit compartment. Wear safety glasses. Make certain the battery has been disconnected.

CAUTION: Make certain the hydraulic cylinder is fully collapsed.

Remove the drive unit compartment cover.

Disconnect the battery. Use a spreader bar and lifting device to remove the battery. DO NOT allow the battery move from side to side. Make sure the battery cables have clearance.

Raise the drive wheel off the floor and put blocks under both sides of the drive unit frame.

Drain the hydraulic oil from the hydraulic unit into an appropriate container.

WARNING: Put blocks under each fork. Position blocks on both sides of the drive wheel. The blocks must prevent the lift truck from falling and causing personal injury or damage.

WARNING: Be careful when removing or installing snap rings. The snap rings can come loose during removal or installation with enough force to cause a personal injury. Always use the correct snap ring pliers, and wear eye and face protection during removal and installation.

Raise the motorized lift truck forks/platform to one half its maximum height.

Place blocks under the forks. Block the drive wheel.

Remove the drive unit compartment cover.

Manually collapse the piston into the cylinder while depressing the lower switch.

Relieve pressure from the hydraulic cylinder.

Drive the roll pin retaining the top clevis pin out of the frame and clevis pin. Remove the top clevis pin.

The reservoir of the hydraulic pump unit can be removed without removing the complete hydraulic unit.

The motor will also come loose, with one set of screws holding the reservoir to the subunit to the motor.

WARNING: The capacitor in the transistor controller can hold an electrical charge after the battery is disconnected. To prevent electrical shock and personal injury, discharge the capacitor before inspecting or repairing any component in the drive unit compartment. Wear safety glasses. Make certain the battery has been disconnected. Refer to the section Steering Mechanism 1600 YRM 1004.

CAUTION: Make certain the hydraulic cylinder is fully collapsed.

NOTE: The reservoir must be lowered below the suction tube before attempting to move the reservoir away from the lift truck. Remember the reservoir may contain hydraulic oil. Dispose of all used oil in accordance with local regulations.

1. Move the key to the OFF position. Disconnect the battery.

2. Remove the drive unit compartment cover.

3. Discharge the capacitor in the transistor controller.